Update module Makefile to work on other systems

diff --git a/kernel/Makefile b/kernel/Makefile
index 4591ba0af9da3da7fccab3ccb9c975e80b1f15c1..1cbdd721cb3843a517046dc0c350af3a6a9ed597 100644 (file)
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -1,9 +1,13 @@
 obj-m += canethgw.o
 
+-include Makefile.local
+# /usr/src/linux/_build_qemu
+
+KERNEL_DIR ?= /lib/modules/`uname -r`/build
+
 all:
-       make -C /usr/src/linux/_build_qemu M=`pwd`
+       make -C $(KERNEL_DIR) M=`pwd`
 install:
-       make -C /usr/src/linux/_build_qemu M=`pwd` modules_install
+       make -C $(KERNEL_DIR) M=`pwd` modules_install
 clean:
-       make -C /usr/src/linux/_build_qemu M=`pwd` clean
-
+       make -C $(KERNEL_DIR) M=`pwd` clean